ZD INSTRUMENT PH-902 pH Tester Pen (0.00 – 14.00 pH; ±0.02pH)

Measuring Range: 0.00 – 14.00 pH

Resolution: 0.01 pH

Accuracy: ±0.02 pH

Calibration: 2-point (6.86 & 4.01 or 7.00 & 4.01 pH)

Electrode: Replaceable

Operating Temperature: 5 – 45°C (ATC)

Features: Auto switch-off (8 minutes), low power consumption

Power Supply: DC 4 × 1.5V (LR1130)

Waterproof: IP57

Datasheet